X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambdadelta%2Fbasic_2A%2Fsubstitution%2Flpx_sn.ma;h=907e85a78a96423248e8b587f83f10341552693c;hb=68b4f2490c12139c03760b39895619e63b0f38c9;hp=18adaacdf645b63414c4434f5f0111323f670d9c;hpb=d2545ffd201b1aa49887313791386add78fa8603;p=helm.git

diff --git a/matita/matita/contribs/lambdadelta/basic_2A/substitution/lpx_sn.ma b/matita/matita/contribs/lambdadelta/basic_2A/substitution/lpx_sn.ma
index 18adaacdf..907e85a78 100644
--- a/matita/matita/contribs/lambdadelta/basic_2A/substitution/lpx_sn.ma
+++ b/matita/matita/contribs/lambdadelta/basic_2A/substitution/lpx_sn.ma
@@ -12,6 +12,7 @@
 (*                                                                        *)
 (**************************************************************************)
 
+include "ground/xoa/ex_3_2.ma".
 include "basic_2A/grammar/lenv_length.ma".
 
 (* SN POINTWISE EXTENSION OF A CONTEXT-SENSITIVE REALTION FOR TERMS *********)